File:John Cage (1988).jpg|thumb|John Cage (1988)
'''John Milton Cage Jr.''' (September 5, 1912 – August 12, 1992) was an American composer, Music theory|music theorist
, writer, and artist. A pioneer of Indeterminacy (music)|indeterminacy in music
, electroacoustic music
, and Extended technique|non-standard use of musical instruments
, Cage was one of the leading figures of the post-war avant-garde
. Critics have lauded him as one of the most influential American composers of the 20th century.
[Pritchett and Kuhn, Grove Online: "He has had a greater impact on music in the 20th century than any other American composer."] He was also instrumental in the development of modern dance, mostly through his association with choreographer Merce Cunningham, who was also Cage's romantic partner for most...